Analysis of interatomic Contacts of Structural Units in PDB entry:
1B4K


Contacts of Structural Units (CSU) are derived with the CSU software (Sobolev V., Sorokine A., Prilusky J., Abola E.E. and Edelman M. (1999) Automated analysis of interatomic contacts in proteins. Bioinformatics, 15, 327-332).
For CSU analysis of other PDB entry

This page provides analyses of contacts formed by:
For analysis of ligand-protein contacts, use: 3D structure can be seen in additional window with STING software for 1B4K entry

There are 2 chains in PDB entry 1B4K (CSU analysis of residue contacts immediately below table)
Chain ID Initial residueTerminal residue
A
 TYR 10ARG 335
B
 ALA 6ARG 335
Residue contacts

1. List of contacts for up to 10 consecutive residues:
Chain ID from residue number to residue number


2. Detailed analyses of contacts for any single residue:
Residue number chain ID
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There are 31 helices in PDB entry 1B4K. Click on helix of interest for CSU analysis.
Helix
number 		Helix
ID		Chain
ID		 Initial
residue		Terminal
residue		 Helix class
Helix 1
1
A
16 19Right-handed alpha
Helix 2
2
A
22 28Right-handed alpha
Helix 3
3
A
35 37Right-handed 310
Helix 4
4
A
65 78Right-handed alpha
Helix 5
5
A
91 93Right-handed 310
Helix 6
6
A
99 102Right-handed 310
Helix 7
7
A
107 118Right-handed alpha
Helix 8
8
A
151 167Right-handed alpha
Helix 9
9
A
181 191Right-handed alpha
Helix 10
10
A
209 218Right-handed 310
Helix 11
11
A
221 224Right-handed alpha
Helix 12
12
A
240 251Right-handed alpha
Helix 13
13
A
263 276Right-handed 310
Helix 14
14
A
286 298Right-handed alpha
Helix 15
15
A
303 316Right-handed 310
Helix 16
16
A
326 333Right-handed alpha
Helix 17
17
B
22 28Right-handed alpha
Helix 18
18
B
35 37Right-handed 310
Helix 19
19
B
65 77Right-handed alpha
Helix 20
20
B
91 93Right-handed 310
Helix 21
21
B
99 102Right-handed 310
Helix 22
22
B
107 118Right-handed alpha
Helix 23
23
B
131 133Right-handed 310
Helix 24
24
B
150 167Right-handed alpha
Helix 25
25
B
181 191Right-handed alpha
Helix 26
26
B
209 218Right-handed 310
Helix 27
27
B
240 251Right-handed alpha
Helix 28
28
B
263 276Right-handed 310
Helix 29
29
B
286 297Right-handed alpha
Helix 30
30
B
303 316Right-handed 310
Helix 31
31
B
326 332Right-handed alpha
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There are 5 sheets in PDB entry 1B4K. Click on sheet of interest to get list of strands forming it: A, B, C, D, E,

There are 6 strands in A sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
A
51 53first strand
Strand 2
A
61 64anti-parallel
Strand 3
A
39 45parallel
Strand 4
A
82 87parallel
Strand 5
A
123 128parallel
Strand 6
A
171 174parallel
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There are 4 strands in B sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
A
320 323first strand
Strand 2
A
280 284parallel
Strand 3
A
256 260parallel
Strand 4
A
200 205parallel
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There are 4 strands in C sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
B
39 44first strand
Strand 2
B
82 87parallel
Strand 3
B
123 128parallel
Strand 4
B
171 174parallel
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There are 2 strands in D sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
B
51 53first strand
Strand 2
B
61 63anti-parallel
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There are 4 strands in E sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
B
320 323first strand
Strand 2
B
280 284parallel
Strand 3
B
256 260parallel
Strand 4
B
200 205parallel
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